Additive for nonaqueous electrolyte solutions, nonaqueous electrolyte solution, and electricity storage device
Disclosed is an additive for non-aqueous electrolyte solutions, which include a compound represented by Formula (1). In Formula (1), X represents a sulfonyl group or a carbonyl group, R 1 represents an alkyl group having 1 to 4 carbon atoms which may be substituted with a halogen atom, or the like, and R 2 represents a divalent hydrocarbon group having 1 to 3 carbon atoms which may be substituted with a halogen atom, or represents a divalent group formed of a divalent hydrocarbon group having 1 to 3 carbon atoms which may be substituted with a halogen atom, and an oxygen atom that constitutes a cyclic structure together with the hydrocarbon group.
1. An additive for non-aqueous electrolyte solutions, comprising
a compound represented by Formula (1a),
wherein, in Formula (1a), X represents a sulfonyl group, and
R 1 represents an alkyl group having 2 to 4 carbon atoms or an alkyl group having 1 to 4 carbon atoms which is substituted with a fluorine atom, an alkenyl group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an alkynyl group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an aryl group which may be substituted with a fluorine atom, an alkoxy group having 1 to 4 carbon atoms which may be substituted with a fluorine atom, an alkenyloxy group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an alkynyloxy group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, or an aryloxy group which may be substituted with a fluorine atom, wherein
one or more of hydrogen atoms bonded to carbon atoms in each of the groups of R 1 may be substituted with a fluorine atom.
2. A non-aqueous electrolyte solution comprising:
an additive for non-aqueous electrolyte solutions
a non-aqueous solvent; and
an electrolyte, wherein the additive includes:
a compound represented by Formula (1a),
in Formula (1a), X represents a carbonyl group or a sulfonyl group, wherein:
when X represents a carbonyl group, R 1 represents an alkyl group having 1 to 4 carbon atoms which is substituted with a fluorine atom, an alkenyl group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an alkynyl group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an aryl group which may be substituted with a fluorine atom, an alkoxy group having 1 to 4 carbon atoms which may be substituted with a fluorine atom, an alkenyloxy group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an alkynyloxy group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, or an aryloxy group which may be substituted with a fluorine atom, and
when X represents a sulfonyl group, R 1 represents an alkyl group having 1 to 4 carbon atoms which may be substituted with a fluorine atom, an alkenyl group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an alkynyl group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an aryl group which may be substituted with a fluorine atom, an alkoxy group having 1 to 4 carbon atoms which may be substituted with a fluorine atom, an alkenyloxy group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, an alkynyloxy group having 2 to 4 carbon atoms which may be substituted with a fluorine atom, or an aryloxy group which may be substituted with a fluorine atom, wherein
one or more of hydrogen atoms bonded to carbon atoms in each of the groups of R 1 may be substituted with a fluorine atom.
3. The non-aqueous electrolyte solution according to claim 2 ,
wherein the non-aqueous solvent includes a cyclic carbonate and a straight-chain carbonate.
4. The non-aqueous electrolyte solution according to claim 2 , wherein the electrolyte includes a lithium salt.
5. A power storage device comprising:
the non-aqueous electrolyte solution according to claim 2 ;
a positive electrode; and
a negative electrode.
6. A lithium ion battery comprising:
the non-aqueous electrolyte solution according to claim 2 ;
a positive electrode; and
a negative electrode.
7. A lithium ion capacitor comprising:
the non-aqueous electrolyte solution according to claim 2 ;
a positive electrode; and
a negative electrode.